Lamp.



N.- BLOUNT.

LAMP.

APPLICATION FILED SEPT. 13, 1910.

Patented Nov. 14, 1911.

16 AZ ia- 1? Snow H601, W W

aw-Lineman r7 21 Queuing COLUMBIA PLANOIJRAPH c0, WASHINGTON, n. c

s'rn'rns PATENT OFFICE.

NELSON BLOUNT, OF NEW YORK, N. Y., ASSIGNOR T0, UNITE-D LAMP AND BURNERCOMPANY, OF NEW YORK, N. Y., A CORPORATION OF DELAWARE.

LAMP.

Specification of Letters Patent.

Patented Nov. 14, 1911.

To all whom it may concern:

Be it known that I, NELSON BLOUNT, a citizen of the United States,residing'in the borough of Manhattan, in the city and county of New Yorkand State of New York, have invented certain new and useful Improvementsin Lamps, of which the following is a specification.

The invention relates to lamps generally, but more particularly to theburners thereof; and it has for its chief object to so improve theconstruction of lamp burners, of the central-draft type particularly thecharacter of burner shown and described in the patent granted to S. B.Morss, November 23, 1910, and numbered 941,163, that their efiiciency inoperation will be materially enhanced.

Other objects of the invention will become apparent upon a full andcomplete disclosure thereof.

The invention consists in the novel construction and arrangement of theseveral parts, and the combination of the same, as will be hereinafterfully disclosed and briefly stated in the claims.

In the drawing: Figure 1 represents a side elevation of a lamp, partlyin vertical section, showing my improvements applied thereto. Fig. 2, isa transverse section of the upper part of the air tube taken just abovethe upper member of the wick-raiser.

Referring to the view, the numeral 1, indicates a lamp provided with asuitable base 2, a filling-orifice 3 closed by a removable closure 4,and a burner-guard 5.

The bottom of the oil-reservoir is provided with a central opening 6surrounded by an upwardly-projecting flange 7 and fitting over saidflange is one end of a central air-tube 8 which projects up through saidreservoir and the burner-guard, the latter being seated upon a collar 9screwed into the neck of the reservoir, and is detachablyconnected tothe collar by any well-known means, (not shown), such as a bayonetjoint.V I

The burner-guard is provided centrally with a. tube 10, which isconcentrically-arranged with the tube 8 and spaced a suflicient distancetherefrom to alford ample space for the tubular wick 11.

Arranged in the upper part of the tube 8 is a support 12, composed of aplurality of dome-shaped wings 13, preferably three or four, and havinga central aperture 1-1 therethrough. Vertically movable upon thesupport, and guided thereby, is a tubular air-distributer 15 which isprovided with a perforated, flaring gasifier or generator 16 having anoutwardly-projecting extinguisher-flange 17 resting upon the top edge ofthe Wick. The tubular body of the airdist-ributer is spaced apart fromthe tube 8 to provide an air-passage 18, and the top of theair-distributer is provided with a solid plate 19 to which isdetachably-connected a spring-restrained rod 20 which exerts a constantdownward-pressure upon the air-dis tributer to maintain theextinguisher-flange with a constant pressure upon the top edge ofthe'wick, so as to prevent the generated gas from escaping between saidflange and said top edge and thereby become mingled with the outsideflame, but to allow it to escape through the gasifier or generator. Therod 20 passes through the aperture 14 in the support and through anapertured guide 21 in the lower part of the tube 8, and a coilspring 22having one end seated against a head 23 011 the rod, and the other endagainst the guide 21, serves to exert a constant downward pressure 'uponsaid rod, as hereinbefore mentioned.

The wick is raised and lowered by means of the following describedmechanism: A pair of wick-raisers 24, are arranged at opposite sides ofthe tubular wick, and connected to said wick-raisers, by means of links25, is an annulus 26, which, in turn, is connected, by an arm 27 ,withthe lower end of a vertically-movable tube 28, the upper end of which isclosed by a plug 29, and screwed into said plug is an operating rod 30which passes up through and is guided by a tube 31 secured by anysuitable means to the bottom Wall of the reservoir. The upper edge ofthe wick-raisers are provided with spurs adapted to engage the wick, andby pushing the operating-rod upward through the tube 31 the tube 28; israised, and thereby the annulus 26 and wick-raisers 24, the movement ofthe rod being limited by the adjustable nut 32 which, may be brought toany predetermined position upon the rod 30 to regulate the height thewick may be raised.

It will be noted that the air-distributer, by reason of the wingedguide, which forms an important feature of my invention, is

accurately centered, and truly guided in its vertical movements withinthe tube 8. Air is taken in through the perforations 33 and 34, andpassing up through tube 8 and the air-chamber 18, enters the gasifier orgenerator, where the generation of the gas takes place. In the ordinarylamp the guard is rigid with the lamp collar, which is highlyobjectionable, as dust accumulates in the inner cup-shape flange, asshown at 35, and becoming soaked with oil soon forms a caked and ranciddeposit, difficult to re move, but by making the guard detachable fromthe collar, the part may be easily kept. clean, as may be the entireburner.

Having thus fully described my invention, what I claim is:

1. A central draft-burner having in combination a central airtube, awick-tube concentrically-arranged around the upper portion of saidair-tube, afiXed centering-support arranged'in the upper end of theairtube, an air distributer vertically movable on said support andguided, thereby, said air-distributer being spaced apart from thecentral air-tube to form an air-chamber, and provided with agas-generator carrying an extinguisher-flange, and means exerting aconstant downward pressure on the air-distributer and thereby on saidextinguisherflange.

2. A central draft-burner having in combination a central air-tube, awick-tube concentrically-arranged around the upper portionof theair-tube, a support fixed in the upper end of said air-tube, saidsupport having centering wings, an air-distributer vertically-movable onsaid wings and guided' thereby, a gas-generator carried by theairdistributer and provided with an extinguisher-flange, an air-chamberformed between the central air-tube and the air-distributer, saidair-chamber being in communication with said central air-tube, and meansexerting a constant downward pressure on both air-distributer andextinguisher-flange.

3. A central draft-burner having in combination a central air-tube, awick-tube concentrically arranged around the upper portion of theair-tube, a centering-support arranged in the upper end of saidair-tube, a vertically-movable air-distributer mounted on said supportand guided thereby, a gasgenerator carried by the air-distributer andprovided with an extinguisher-flange, an air-chamber formed between thecentral airtube and the air-distributer, said air-chamber being incommunication with said central-air-tube, and a spring restrained rodpassing through the central air-tube for exerting a constant downwardpressure on both air-distributer and extinguisher-flange.

4. A central draft-burner having in combination a central air-tube, awick-tube concentrically-arranged around the upper portion of theair-tube, a support fixed in the upper end of said air-tube and providedwith a number of centering wings, an airdistributer vertically-movableon said wings and guided thereby, a gas-generator carried by theair-distributer and provided with an extinguisher-flange, and aspring-restrained rod exerting a constant downward pressure on bothairdistributer and extinguisherflange.

5. A central draft-burner having in combination a central air-tube, awick-tube concentrically-arranged around the upper portion of theair-tube, a centering-support arranged in the upper end of saidair-tube, a

vertically-movable air-distributer mounted on said support and guidedthereby, a gasgenerator carried by the air-distributer and provided withan extinguisher-flange, an air-chamber formed between the centralairtube and the airdistributer, said air-chamber being in communicationwith said central air-tube, a spring-restrained rod passing through thecentral air-tube for exerting a constant downward pressure on both airdistributer and extinguisher-flange, and means for raising and loweringthe wick.

6. A central draft-burner having in combination a central air-tube, awick-tube concentrically-arranged around the upper portion of theair-tube, a support fixed in the upper end of said air-tube and providedwith a number of curved centering wings, an air-distributervertically-movable on said wings and guided thereby, a gas-generatorcarried by the air-distributer and provided with an extinguisher-flange,a spring-restrained rod exerting a constant'downward pressure on bothair-distributer and extinguisherflange, means for adjusting the wick,and means for holding the same in ad justed position.

In testimony whereof I have affixed my signature in presence of twowitnesses.

' NELSON BLOUNT. Witnesses:

ANNA ZWIRK, H. U. BLOUNT.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. G.

